Pre Algebra - CHAPTER 1: Whole Numbers

Question 1

1.1 Digits

Answer 1

0,1, 2, 3, 4, 5, 6, 7, 8, and 9

Question 2

1.1 Natural Numbers or ( counting numbers)

Answer 2

1, 2, 3, 4, 5, 6, and so on

Question 3

1.1 Whole Numbers

Answer 3

0, 1, 2, 3, 4, 5, and do on.

Question 4

1.1 Symbols
Less than () ...

Answer 4

Are used to compare two whole numbers that are not equal to each other.

Question 5

1.1 To round a whole number means….

Answer 5

To give an approximate value. The approximately is found by rounding to an indicated place.

Question 6

1.2 Addends

Answer 6

Are numbers that are added. In 9+20+3=32, the Addends are 9, 20, and 3

Question 7

1.2 Sum

Answer 7

Is the answer to an addition exercise. In 9+20+3=32, the sum is 32.

Question 8

1.2 Commutative property of addition

Answer 8

Permits us to change the order of the Addends in addition exercises while the sum remains unchanged.

Question 9

1.2 Associative property of addition

Answer 9

Permits us to change the grouping of Addends in addition exercises while the sum remains unchanged.

Question 10

1.2 Difference

Answer 10

Is the answer in a subtraction exercise. So, in 62-34=28, 28 is the difference.

Question 11

1.3 Factors

Answer 11

The factors of a multiplication exercise are the numbers being multiplied. In 5(8)=40, 5 and 8 are the factors.

Question 12

1.3 product

Answer 12

The product is the answer to a multiplication exercise. In 5(8) =40, the product is 40.

Question 13

1.3 commutative property of multiplication

Answer 13

Permits us to change the order of factors in multiplication while the product remains the unchanged. So, 12(9)=9(12).

Question 14

1.3 associative property of multiplication

Answer 14

Permits us to change the grouping of factors in a multiplication exercise, and the result remains unchanged. So, (3x2)15 = 3(2x15)

Question 15

Distributive property

Answer 15

Permits the writing of the product of a number times a sum as the sum of two products and vice versa.
3(2+4) = 3(2) + 3(4). And. 5(8)+5(9) = 5(8+9)
3(6) = 6+12. 40+45 = 5(17)
18 = 18. 85 = 85

Question 16

1.4 base

Answer 16

A base is a number used as a repeated factor

Question 17

1.4 exponent

Answer 17

An exponent indicates the number of times the base is used as a factor.

Question 18

1.4 power of ten

Answer 18

A power of 10 is the value obtained when 10 is written with an exponent.

Question 19

1.6 parentheses ( ) and brackets[ ] …

Answer 19

Are grouping symbols used in mathematics. These symbols indicate that the operations inside are to be performed first.

Question 20

1.6 the steps in order of operations

Answer 20

Step 1. Parentheses
Step 2. Exponents
Step 3. Multiply and divide ( from left to right)
Step 4. Add and subtract ( from left to right)

Question 21

1.7 table

Answer 21

A table is a method of displaying data in an array using a horizontal and vertical arrangement to distinguish the type of data.

Question 22

1.7 row

Answer 22

A row of a table is a horizontal line of a table and reads left to right across the page.

Question 23

1.7 column

Answer 23

A column of a table is a vertical line of a table and reads up or down the page.

Question 24

1.8 graphs

Answer 24

Graphs are used to illustrate sets of numerical information.

Question 25

1.8 bar graphs

Answer 25

A bar graph uses solid lines or heavy bars of fixed length to represent numbers from a set. They contain two scales, vertical and horizontal scales.

Question 26

1.8 line graph

Answer 26

A line graph uses lines connecting points to represent numbers from a set, a line graph has both vertical and horizontal scales like the bar graph.

Question 27

1.8 pictograph

Answer 27

A pictograph uses symbols or simple drawings to represent numbers from a set.